/****************************************************************************
 *
 * Copyright 2019 Samsung Electronics All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific
 * language governing permissions and limitations under the License.
 *
 ****************************************************************************/
/*****************************************************************************
 *
 * LZMA SDK is written and placed in the public domain by Igor Pavlov.
 *
 * Some code in LZMA SDK is based on public domain code from another developers:
 *   1) PPMd var.H (2001): Dmitry Shkarin
 *   2) SHA-256: Wei Dai (Crypto++ library)
 *
 * Anyone is free to copy, modify, publish, use, compile, sell, or distribute the
 * original LZMA SDK code, either in source code form or as a compiled binary, for
 * any purpose, commercial or non-commercial, and by any means.
 *
 * LZMA SDK code is compatible with open source licenses, for example, you can
 * include it to GNU GPL or GNU LGPL code.
 *
 *****************************************************************************/

/* 7zTypes.h -- Basic types
2018-08-04 : Igor Pavlov : Public domain */

#ifndef __7Z_TYPES_H
#define __7Z_TYPES_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#ifdef _WIN32
/* #include <windows.h> */
#endif
#include <stddef.h>

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

#ifndef EXTERN_C_BEGIN
#ifdef __cplusplus
#define EXTERN_C_BEGIN extern "C" {
#define EXTERN_C_END }
#else
#define EXTERN_C_BEGIN
#define EXTERN_C_END
#endif
#endif

EXTERN_C_BEGIN
#define SZ_OK 0
#define SZ_ERROR_DATA 1
#define SZ_ERROR_MEM 2
#define SZ_ERROR_CRC 3
#define SZ_ERROR_UNSUPPORTED 4
#define SZ_ERROR_PARAM 5
#define SZ_ERROR_INPUT_EOF 6
#define SZ_ERROR_OUTPUT_EOF 7
#define SZ_ERROR_READ 8
#define SZ_ERROR_WRITE 9
#define SZ_ERROR_PROGRESS 10
#define SZ_ERROR_FAIL 11
#define SZ_ERROR_THREAD 12
#define SZ_ERROR_ARCHIVE 16
#define SZ_ERROR_NO_ARCHIVE 17
typedef int SRes;

#ifdef _WIN32
/* typedef DWORD WRes; */
typedef unsigned WRes;
#define MY_SRes_HRESULT_FROM_WRes(x) HRESULT_FROM_WIN32(x)
#else
typedef int WRes;
#define MY__FACILITY_WIN32 7
#define MY__FACILITY__WRes MY__FACILITY_WIN32
#define MY_SRes_HRESULT_FROM_WRes(x) ((HRESULT)(x) <= 0 ? ((HRESULT)(x)) : ((HRESULT) (((x) & 0x0000FFFF) | (MY__FACILITY__WRes << 16) | 0x80000000)))
#endif

#ifndef RINOK
#define RINOK(x) { int __result__ = (x); if (__result__ != 0) return __result__; }
#endif

typedef unsigned char Byte;
typedef short Int16;
typedef unsigned short UInt16;

#ifdef _LZMA_UINT32_IS_ULONG
typedef long Int32;
typedef unsigned long UInt32;
#else
typedef int Int32;
typedef unsigned int UInt32;
#endif

#ifdef _SZ_NO_INT_64
/* define _SZ_NO_INT_64, if your compiler doesn't support 64-bit integers.
   NOTES: Some code will work incorrectly in that case! */
typedef long Int64;
typedef unsigned long UInt64;
#else
#if defined(_MSC_VER) || defined(__BORLANDC__)
typedef __int64 Int64;
typedef unsigned __int64 UInt64;
#define UINT64_CONST(n) n
#else
typedef long long int Int64;
typedef unsigned long long int UInt64;
#define UINT64_CONST(n) n ## ULL
#endif
#endif

#ifdef _LZMA_NO_SYSTEM_SIZE_T
typedef UInt32 SizeT;
#else
typedef size_t SizeT;
#endif

typedef int BoolInt;
/* typedef BoolInt Bool; */
#define True 1
#define False 0

#ifdef _WIN32
#define MY_STD_CALL __stdcall
#else
#define MY_STD_CALL
#endif

#ifdef _MSC_VER
#if _MSC_VER >= 1300
#define MY_NO_INLINE __declspec(noinline)
#else
#define MY_NO_INLINE
#endif
#define MY_FORCE_INLINE __forceinline
#define MY_CDECL __cdecl
#define MY_FAST_CALL __fastcall
#else
#define MY_NO_INLINE
#define MY_FORCE_INLINE
#define MY_CDECL
#define MY_FAST_CALL
#endif

/****************************************************************************
 * Public Types
 ****************************************************************************/

/* The following interfaces use first parameter as pointer to structure */

typedef struct IByteIn IByteIn;
struct IByteIn {
	Byte(*Read)(const IByteIn *p);	/* reads one byte, returns 0 in case of EOF or error */
};
#define IByteIn_Read(p) (p)->Read(p)

typedef struct IByteOut IByteOut;
struct IByteOut {
	void (*Write)(const IByteOut *p, Byte b);
};
#define IByteOut_Write(p, b) (p)->Write(p, b)

typedef struct ISeqInStream ISeqInStream;
struct ISeqInStream {
	SRes(*Read)(const ISeqInStream *p, void *buf, size_t *size);
	/* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
	   (output(*size) < input(*size)) is allowed */
};
#define ISeqInStream_Read(p, buf, size) (p)->Read(p, buf, size)

typedef struct ISeqOutStream ISeqOutStream;
struct ISeqOutStream {
	size_t(*Write)(const ISeqOutStream *p, const void *buf, size_t size);
	/* Returns: result - the number of actually written bytes.
	   (result < size) means error */
};
#define ISeqOutStream_Write(p, buf, size) (p)->Write(p, buf, size)

typedef enum {
	SZ_SEEK_SET = 0,
	SZ_SEEK_CUR = 1,
	SZ_SEEK_END = 2
} ESzSeek;

typedef struct ISeekInStream ISeekInStream;
struct ISeekInStream {
	SRes(*Read)(const ISeekInStream *p, void *buf, size_t *size);	/* same as ISeqInStream::Read */
	SRes(*Seek)(const ISeekInStream *p, Int64 *pos, ESzSeek origin);
};
#define ISeekInStream_Read(p, buf, size)   (p)->Read(p, buf, size)
#define ISeekInStream_Seek(p, pos, origin) (p)->Seek(p, pos, origin)

typedef struct ILookInStream ILookInStream;
struct ILookInStream {
	SRes(*Look)(const ILookInStream *p, const void **buf, size_t *size);
	/* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
	   (output(*size) > input(*size)) is not allowed
	   (output(*size) < input(*size)) is allowed */
	SRes(*Skip)(const ILookInStream *p, size_t offset);
	/* offset must be <= output(*size) of Look */
	SRes(*Read)(const ILookInStream *p, void *buf, size_t *size);
	/* reads directly (without buffer). It's same as ISeqInStream::Read */
	SRes(*Seek)(const ILookInStream *p, Int64 *pos, ESzSeek origin);
};

#define ILookInStream_Look(p, buf, size)   (p)->Look(p, buf, size)
#define ILookInStream_Skip(p, offset)      (p)->Skip(p, offset)
#define ILookInStream_Read(p, buf, size)   (p)->Read(p, buf, size)
#define ILookInStream_Seek(p, pos, origin) (p)->Seek(p, pos, origin)

typedef struct {
	ILookInStream vt;
	const ISeekInStream *realStream;

	size_t pos;
	size_t size;				/* it's data size */
	/* the following variables must be set outside */
	Byte *buf;
	size_t bufSize;
} CLookToRead2;

#define LookToRead2_Init(p) { (p)->pos = (p)->size = 0; }

typedef struct {
	ISeqInStream vt;
	const ILookInStream *realStream;
} CSecToLook;

typedef struct {
	ISeqInStream vt;
	const ILookInStream *realStream;
} CSecToRead;

typedef struct ICompressProgress ICompressProgress;

struct ICompressProgress {
	SRes(*Progress)(const ICompressProgress *p, UInt64 inSize, UInt64 outSize);
	/* Returns: result. (result != SZ_OK) means break.
	   Value (UInt64)(Int64)-1 for size means unknown value. */
};
#define ICompressProgress_Progress(p, inSize, outSize) (p)->Progress(p, inSize, outSize)

typedef struct ISzAlloc ISzAlloc;
typedef const ISzAlloc *ISzAllocPtr;

struct ISzAlloc {
	void *(*Alloc)(ISzAllocPtr p, size_t size);
	void (*Free)(ISzAllocPtr p, void *address);	/* address can be 0 */
};

#define ISzAlloc_Alloc(p, size) (p)->Alloc(p, size)
#define ISzAlloc_Free(p, a) (p)->Free(p, a)

/* deprecated */
#define IAlloc_Alloc(p, size) ISzAlloc_Alloc(p, size)
#define IAlloc_Free(p, a) ISzAlloc_Free(p, a)

#ifndef MY_offsetof
#ifdef offsetof
#define MY_offsetof(type, m) offsetof(type, m)
#else
#define MY_offsetof(type, m) ((size_t)&(((type *)0)->m))
#endif
#endif

#ifndef MY_container_of
#define MY_container_of(ptr, type, m) ((type *)((char *)(1 ? (ptr) : &((type *)0)->m) - MY_offsetof(type, m)))
#endif

#define CONTAINER_FROM_VTBL_SIMPLE(ptr, type, m) ((type *)(ptr))
#define CONTAINER_FROM_VTBL(ptr, type, m) MY_container_of(ptr, type, m)
#define CONTAINER_FROM_VTBL_CLS(ptr, type, m) CONTAINER_FROM_VTBL_SIMPLE(ptr, type, m)

#ifdef _WIN32
#define CHAR_PATH_SEPARATOR '\\'
#define WCHAR_PATH_SEPARATOR L'\\'
#define STRING_PATH_SEPARATOR "\\"
#define WSTRING_PATH_SEPARATOR L"\\"
#else
#define CHAR_PATH_SEPARATOR '/'
#define WCHAR_PATH_SEPARATOR L'/'
#define STRING_PATH_SEPARATOR "/"
#define WSTRING_PATH_SEPARATOR L"/"
#endif

/****************************************************************************
 * Public Functions
 ****************************************************************************/

/* it can return SZ_ERROR_INPUT_EOF */
SRes SeqInStream_Read(const ISeqInStream *stream, void *buf, size_t size);
SRes SeqInStream_Read2(const ISeqInStream *stream, void *buf, size_t size, SRes errorType);
SRes SeqInStream_ReadByte(const ISeqInStream *stream, Byte *buf);
SRes LookInStream_LookRead(const ILookInStream *stream, void *buf, size_t *size);
SRes LookInStream_SeekTo(const ILookInStream *stream, UInt64 offset);
/* reads via ILookInStream::Read */
SRes LookInStream_Read2(const ILookInStream *stream, void *buf, size_t size, SRes errorType);
SRes LookInStream_Read(const ILookInStream *stream, void *buf, size_t size);
void LookToRead2_CreateVTable(CLookToRead2 *p, int lookahead);
void SecToLook_CreateVTable(CSecToLook *p);
void SecToRead_CreateVTable(CSecToRead *p);

EXTERN_C_END
#endif							/* __7Z_TYPES_H */
